Questions Asked on
January 28, 2013

  1. pre-calc

    The sum of two numbers is radical 3. Find the largest possible value for their product

    asked by seria
  2. pre-calc

    The sum of two numbers is radical 3. Find the largest possible value for their product

    asked by seria
  3. science

    1. Which of the following is TRUE regarding this situation: Solution A has a pH of 7.38, and Solution B has a pH of 7.42? a.Solution B is more acidic than Solution A b.The pH of Solution A falls within the homeostatic pH range for extracellular body

    asked by a
  4. math

    EXPLAIN HOW YOU CAN BREAK 6X7 ARRAY IN TO SMALLER ARRAYS .WHAT ARE THE NEW FACTS?

    asked by tom
  5. Finite

    the student wants to buy 3 CDs, but assume that there are 3 CDs featuring the piano, 5 CDs featuring the trumpet, and 7 CDs featuring the saxophone. (2) In how many ways can the selection be made if CD's featuring at least 2 different instruments are

    asked by Chelsea P
  6. chemistry

    How many orbitals are contained in the n=2 level? Give the l and ml values of each of them.

    asked by savannah
  7. chemistry

    From the jewelry descriptions given, select the homogeneous mixture or solution. Answer?? 10 carat (K) electroplated gold jewelry 24 carat (K) gold jewelry (i know this is pure gold) 18 carat (K) gold jewelry Are these right? CaCl2>>calcium chloride

    asked by Lucky
  8. Physics

    A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and

    asked by Jasmine
  9. Physics

    An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is σ = 1.67 10-7 C/m2, and the plate separation is 1.35 10-2 m. How fast is the electron moving just before it reaches the

    asked by Jasmine
  10. Math

    You are playing Guess you card with (3) other players. Here is wha you see: Andy has the cars 1,5, and 7 Belle has the cards 5,4, and 7 Carol has the cards 2,4, and 6 Andy draws the question card, " do you see two or more players whose cards sum to the

    asked by Mike
  11. Physics

    Two charges are placed on the x axis. One of the charges (q1 = +9.3 µC) is at x1 = +3.4 cm and the other (q2 = -20 µC) is at x2 = +8.9 cm. (a) Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the

    asked by Jasmine
  12. Physics

    A small object, which has a charge q = 6.7 µC and mass m = 9.60 10-5 kg, is placed in a constant electric field. Starting from rest, the object accelerates to a speed of 2.06 103 m/s in a time of 1.03 s. Determine the magnitude of the electric field.

    asked by Jasmine
  13. maths

    list the following in order of size starting with the smallest. 1/3, 0.3, 0.29, 32%

    asked by chungu
  14. Science

    In the chlor-alkali process, the mass of NaCl(s) required to produce 0.793 kg of chlorine gas is _____ kg.

    asked by Allan
  15. Chemistry

    In the chlor-alkali process, the mass of NaCl(s) required to produce 0.793 kg of chlorine gas is _____ kg.

    asked by Allan
  16. maths

    A three digit number is multiplied by a 2 digit number and answer is a natural number. How o solve this and logic for this thanks

    asked by spita
  17. English 1/ or literature

    What is a example of a understatement in the cask of amontillado.? I know a understatement is a form of speech which contains an expression of less strength than what would be expected. I really need help with this. Thanks :)

    asked by Lex
  18. Analytic Geometry

    Find the equation of a circle passing through (-1,6) and tangent to the lines x-2y+8=0 and 2x+y+6=0. Please I really need your help. I just do not know what to do.

    asked by Lea
  19. phy

    1 An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take g=10ms−2 15 m above the top of the building 30 m below the top of the building 15 m below the top of the

    asked by christ
  20. phy

    A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the

    asked by christ
  21. phy

    1 What is the gravitational field strength at a height h above the surface of the Earth? R is the radius of the earth gR2(R+h)2 gR(R+h) Rg(R−h) R2g(R−h)2 2 The instrument used for experimental determination of the value of the universal gravitational

    asked by christ
  22. phy

    1 Physical quantities such as length, mass, time and temperature are referred to as vector quantities fundamental quantities scalar quantities derived quantities 2 The following are examples of vector quantities except displacment velocity accleration

    asked by christ
  23. Math-Please Help

    Dimensional Analysis How do you go from 50 kg/m to g/cm?

    asked by Barb
  24. pre-calculus

    let f(x)=x^2 -(a^2 + 2a)x + 2a^3, where 0

    asked by cassie
  25. Chemestry

    How many moles of NaHCO3 are in a 44g sample?

    asked by Douglas
  26. math

    the bridge was built, the wood contained 15 grams of carbon-14. How much carbon- 14 would it have contained when it was found by the archaeologists? Round to the nearest hundredth

    asked by Tran
  27. physics

    The security alarm on a parked car goes off and produces a frequency of 1370 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 147 Hz. At what speed are you driving?

    asked by Anonymous
  28. physics

    Both drawings show the same square, each of which has a side of length L = 0.86 m. An observer O is stationed at one corner of each square. Two loudspeakers are located at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the

    asked by Anonymous
  29. Physics

    A boat crosses a river of width 113 m in which the current has a uniform speed of 0.933 m/s. The pilot maintains a bearing (i.e., the direction in which the boat points) perpendicular to the river and a throttle setting to give a constant speed of 2.58 m/s

    asked by Karen
  30. PHYSICS 1 ..lab helllpppppppp

    1.described the motion of mud that flies off from a rapidly spinning wheel. 2.explain why the outer rail is higher than the inner rail of curve in a railroad track. 3. a 5kg mass is moving in a circle of a radius 3m at a speed of 30 m/sec.determine the

    asked by JORHO
  31. Calculus/Algebra

    your company produces designer dog-leashes. the marginal costs are $4.50 per leash and each leash is sold for $12.00. You need to produce and sell 75 dog leashes per month in order to break even. Based on this information, what are your monthly fixed

    asked by Sam
  32. Calculus/Algebra

    Let the demand and supply functions be represented by p=D(q) and p=S(q), respectively, where p is the price per item in dollars and q is the quantity of items. D(q) = 42-.03q S(q) = .02q -20 Find the equilibrium price. Hint: you will first find the

    asked by Sam
  33. maths

    ABCD is a quadrilateral. P,Q,R, and s are the mid Points of AB, BC, CD and DA respectively . Show PR and QS bisects each other.

    asked by ujjval
  34. Physics

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 21 m/s. The cliff is 52 m above the water’s surface. How long does it take for the stone to fall to the water? The acceleration of gravity is 9.81 m/s^2.

    asked by Dylan
  35. Physics

    Stephanie serves a volleyball from a height of 0.78 m and gives it an initial velocity of +7.7 m/s straight up. How high will the volleyball go? The acceleration of gravity is 9.81 m/s^2. How long will it take the ball to reach its maximum height?

    asked by Melanie
  36. Chemistry

    The term mole is used in chemistry to define an amount of a substance. For example, a mole of glucose, blood sugar, weighs 180.16 grams. A common concentration unit for solutions is moles of substance per liter of solution. We abbreviate this with the

    asked by Ryan
  37. college chemistry

    calculate the specific heat for 18.5-g sample of tin that absorbs 183 J when its temp increases from 35.0 degrees celcius to 78.6 degress celcius. I don't know where to even start, help?

    asked by dancechick123
  38. Social studies

    Europeans unknowlingly carried diseases such as smallbox measles and influenza to which native americans had no immunity. Can you please tell me the significance of the word immunity???

    asked by Maya
  39. Engineering Math

    A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach

    asked by Abdul
  40. Engineering Math

    A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach

    asked by Abdul
  41. Physical science

    An object is on a horizontal surface,three force act horizontal on the object.3N to the left,12N to the right,in to the left.at the same time,another three force act vertically on the object,4N upwards,10N downward,2N downwards determine the resultant

    asked by Anonymous
  42. Chemistry

    how many half lives have passed if only 0.625g remain of the original 40g?

    asked by Sally
  43. Physical science

    An object is on a horizontal surface,three force act horizontal on the object.3N to the left,12N to the right,in to the left.at the same time,another three force act vertically on the object,4N upwards,10N downward,2N downwards determine the resultant

    asked by Andiswa
  44. math

    how do you solve a question like this: (0,1,3,4) (-3,1,9,13

    asked by Bella
  45. math help

    Six hundred ninety four ten thousndths is how much more than fifty seven thousndths? Write the answer in words

    asked by Anonymous
  46. Physics

    A point charge (m = 1.0 g) at the end of an insulating string of length L = 46 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 8800 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge

    asked by kjipper
  47. Physics

    A spring with an unstrained length of 0.066 m and a spring constant of 2.3 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 4.84 10-3 kg and

    asked by kjipper
  48. math

    2cm-25cmm=

    asked by Anonymous
  49. math

    What is an example of a quintic polynomial function that has exactly four zeros?

    asked by Brenda
  50. math help

    2m-25cm=

    asked by Anonymous
  51. chemistry urgent urgent

    ... the hiv virus that causes aids destroys the immune system in the body. classify the hiv virus and explain the statement.

    asked by zachary
  52. Calculus

    In order to express the function y=12^19x+7 as a composition of two functions the outer of which is an exponential function,we would let u be equal to the inner function, u=19x+7, and then write y as a function of u, as follows: y= ??? . (b) In order to

    asked by Jessie
  53. math help

    At 9:00 a.m. marsha found a parking meter that still had 5 minute until it expired. She quickly put a quarter, 1dime, and a nickel into the meter and went to her meeting. If 5¢ buys 15 minute of parking time, at what time will the meter expired

    asked by Anonymous
  54. math help

    Fifty four million, seven hundred thousand is how much greater than five million, eighty nine thousndths. Write the answer in words

    asked by Anonymous
  55. physical sciences

    Imagine a circle with a diameter of 2km.if this represents an atom ,which answer would best represent the nucleus?choose the correct answer:a table tennis ball(diameter;2cm)atennis ball(diameter;7cm)avolley ball(diameter;20cm)a soccer ball(diameter;25cm)

    asked by qwert
  56. math help

    Write 5.62*10^5 in standard form

    asked by Anonymous
  57. math help

    Brand x cost $1.56 for 12 ounce. Brand y cost 2¢ more per ounce. What is the cost of 15 ounce of Brand y

    asked by Anonymous
  58. physics

    A container holds 2.2 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 7.7x10-3 kg bullet with a speed of 650 m/s. What is the Kelvin temperature of the gas?

    asked by natasha
  59. Physics

    A ball on the end of a string is whirled around in a horizontal circle of radius 0.486 m. The plane of the circle is 1.83 m above the ground. The string breaks and the ball lands 2.39 m away from the point on the ground directly beneath the ball’s

    asked by Emily
  60. calculus

    find the derivative of: g(x) = interal(a=7x, b=6x) (u+5)/(u-5) du Hint: interal(a=7x, b=6x) (u+5)/(u-5) du = interal(a=0, b=6x) (u+5)/(u-5) du + interal(a=7x, b=0) (u+5)/(u-5) du

    asked by Tom
  61. Physics

    An athlete whirls a 7.36 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.07 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain.

    asked by Bret
  62. math

    What is an example of a quintic polynomial function that has exactly four zeros?

    asked by Brenda
  63. math help

    The curtis car traveled an average of 21 miles per gallon of gas. At that rate how far could the car travel on a full tank of 21 gallons

    asked by Anonymous
  64. physical science

    A tractor pulls a tree trunk across horizontal piece of ground. If the force in the chain is 3000N and the chain forms an angle of 30 degrees with the group , calculate 1the force with wch the tree is pulled across the ground 2 the force with wch the tree

    asked by nthabeleng
  65. Chemistry

    ​What is the point called on a graph of pH vs log {[A-]/[HA]} when [A-] = [HA]?   Graphs are listed as “y vs. x”.

    asked by Rickie
  66. Calculus

    Let h(x) = 4x^2 + 2 x + 2. Let g(x) = 3√{x} + 1 (This is the third square root plus 1) (a) g(h(x)) = (b) h(g(x)) = (c) h(h(x)) = (d) g(x) + 1 = (e) g(x+1) =

    asked by Jessie
  67. writing

    Edit mMath Autobiography Theresa V. Monteiro MAT 095 11:00 AM – 12:15 PM My name is Theresa and I am from Norwalk Connecticut. I’ve been living here for a year now. I moved to New London Connecticut to start my life. I’ve taken care of all my

    asked by Theresa
  68. Calculus

    Write an equation for a graph obtained by vertically shifting the graph of y = x^2 + 10 downward by 35 units, followed by stretching the resulting graph by a factor of 19.6.

    asked by Jessie
  69. MicroEcon

    Suppose that you supply bottled water in a competitive market and that you are producing the profit-maximizing quantity of bottled water. If you can sell your water at $2 a bottle and you currently employ five workers at a wage of $50 a day, what is the

    asked by Bob
  70. Science; Solar System

    True or False 5. The outer planets are small, rocky planets with iron cores. true false 6. It is unlikely that the sun formed alone. It probably formed with a cluster of stars like the sun. true false

    asked by Jman
  71. Chemistry

    a sample of silver chromate has a mass of 78.6 grams?

    asked by david
  72. math please

    The curtis car traveled an average of 21 miles per gallon of gas. At that rate, how far could the car travel on a full tank of 21gallons

    asked by jasmine
  73. Physics

    A 0.35 m2 coil with 50 turns produces a maximum emf of 45 volts in a magnetic field of 0.4 Tesla. What is the speed of rotation of the coil? Can you show the steps too so I can understand? Thanks

    asked by Anonymous
  74. moroka

    What is a doctor?

    asked by angel
  75. mechanical properties of materials

    following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) Elongation(mm) 5 0.005 10 0.015 30 o.048 50 0.084 60 0.102 64.5 0.109 67 0.119 68 0.137 69 0.160 70 0.229 72 0.300 76 0.424 84

    asked by dmkp
  76. life orantaion

    What is a doctor?

    asked by angel
  77. mechanical properties of materials

    A cylindrical steel bar is required to support a load of 650 N. the required bar must be 0.17 m in length and must not deform by more than 0.015 mm. given that the Young's modulus of steel is 210 GPa, calculate the minumum diameter of the bar.

    asked by dmkp
  78. mechanical properties of materials

    A steel cable of length 10 m and cross-sectional area 1200 mm2 is loaded with an object of weight 30 kN. Given that the cable is not loaded beyond its proportional limit and Young's modulus of steel is 210 GPa, draw a stress-strain curve for the loaded

    asked by dmkp
  79. CHEMISTRY

    write the balanced ionic equation of K2CO3+HCl

    asked by GODBLESS
  80. mechanical properties of materials

    following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) /Elongation(mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67/ 0.119 68 /0.137 69/ 0.160 70 /0.229 72 /0.300 76

    asked by dmkp
  81. mechanical properties of materials

    A cylindrical steel bar is required to support a load of 650 N. the required bar must be 0.17 m in length and must not deform by more than 0.015 mm. given that the Young's modulus of steel is 210 GPa, calculate the minumum diameter of the bar.

    asked by dmkp
  82. mechanical properties of materials

    A steel cable of length 10 m and cross-sectional area 1200 mm2 is loaded with an object of weight 30 kN. Given that the cable is not loaded beyond its proportional limit and Young's modulus of steel is 210 GPa, draw a stress-strain curve for the loaded

    asked by dmkp
  83. PHYSICS (most is worked)

    A glass ball, ball A, of mass 6.0 g moves at a velocity of 18.0 cm/s. It collides with a second ball, ball B, of mass 8.0 g, moving along the same line of velocity of 11.0 cm/s. After the collision, ball A is still moving, but with a velocity of 10.0 cm/s.

    asked by Jessica
  84. mechanical properties of materials

    following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) /Elongation(mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67/ 0.119 68 /0.137 69/ 0.160 70 /0.229 72 /0.300 76

    asked by dmkp
  85. mechanics of materials

    A steel bar with a cross sectional area of 25cm2 is found to shear fracture when subjected to a tensile load of 400kN. calculate the limiting shear stress of the bar.

    asked by dmkp
  86. mechanics of materials

    A steel beam with a rectangular cross section is bent to form an arc of a circle of radius 6 m. Calculate the maximum stress in the beam given that the depth of the beam is 6 mm and the Young's modulusfor steel is 210 MPa

    asked by dmkp
  87. mechanics of materials

    A hollow circular shaft has an external diameter of 160mm and an internal diameter of 120mm. Calculagte the polar second moment of areaof the shaft and the maximum and minimum shear stress produced when the applied moment is 40kN m.

    asked by dmkp
  88. mechanics of materials

    A steel bar with a cross sectional area of 25cm2 is found to shear fracture when subjected to a tensile load of 400kN. calculate the limiting shear stress of the bar.

    asked by dmkp
  89. Math

    It is estimated that residents in 60% of households in town own a digital camera. If 10 homes are randomly selected, what is the probability that no more than 5 own digital cameras?

    asked by Bersy
  90. Biology

    In a lab experiment, we experimented with 1% glucose solution and Sorenson's solution to determine pH levels and whatnot; the other part of the lab was to determine which one, if either, was a buffering solution. According to the notes my instructor gave

    asked by Emily
  91. english

    What is a example of a understatement in the cask of amontillado.? Is one "my heart grew sick, it was the dampness of the catacombs that made it so" a understantment in this story? PLEASEE HELP ASAP!!

    asked by alexis
  92. math

    In the statement 'If it is sunny Thursday, we will go to a ball game,' the phrase 'we will go to a ball game' is the ________

    asked by Anonymous
  93. math

    What is the lateral area of a pyramid whose base is a square with sides measuring 16 meters and with a slant height of 17 meters?

    asked by Anonymous
  94. math

    Find the surface area of a cone if the diameter of its base is 13.5 feet, and it has a slant height of 16.8 feet. Round to the nearest tenth.

    asked by Anonymous
  95. Calc 2

    Evaluate the definite integral from 0 to 1 of (x^2)sqrt(5x+6)dx

    asked by Anonymous
  96. Physics

    Suppose the battery on your phone delivers a current of 0.740 mA (that's milliAmperes) over a time of 4.00 hours. What is the total charge that flows out of the battery during this time? AND How many electrons flow out of the battery during this time?

    asked by Tessa
  97. Math

    Can you please check my answers:) 1. John Gray bought a basic car for $8,250.00, with options that cost $324.00. There's a 6% sales tax in his state and a combined $50.00 license and registration fee. What was John's total cost? A. $9,138.44 B. $10,000.00

    asked by Liz
  98. ICD 9 CM

    Patient Y, a 70-year-old woman, presents to your office two days after a syncopal episode. She had walked to the bathroom at 4 a.m., and as she walked back, she rapidly became lightheaded. She grabbed at the near corner of the bed, but ended up falling

    asked by Anonymous
  99. Education

    Assimilationist ideology supports the idea that the schools should serve to homogenize newcomers at the best possible speed. True or False? I want to say true, but would like a second opinion.

    asked by Lor
  100. english 1

    what is the plot of 'new directions' by maya angelou?

    asked by lela
  101. Guidance and Discipline

    Suppose a child has knocked down another`s block tower. To encourage ,a teacher or caregiver may ask the question,"Were you being careful of Sue`s tower when you drove your race car so fast through the block area?"

    asked by Sandra
  102. Physics

    Two spheres are placed at a distance of 10 m from each other. The force of gravity between them is 6.673x10 to the (-9)N. If one of the spheres is 4 times as massive as the other what are their masses in Kg?

    asked by Moe
  103. Physical Science

    How much heat is needed to melt 100 g of ice at 0°C? A: 8000 B: 540 C: 7200 D: 100

    asked by Confused 1
  104. Physics

    The mass of an object at the earths surface is 100 kg. Calculate the force of gravity of the same mass if it is moved a distance of 4 radii from the earths centre.

    asked by Moe
  105. Physics

    A car travels 20.2 km due north and then 31.3 km in a direction φ = 61.2◦ west of north. Find the magnitude of the car’s resultant displacement. Then Calculate the direction of the car’s resultant displacement, measured counterclockwise from the

    asked by Aurora
  106. FIN301 Business Finance

    Why are there so many different interest rates? What do each type mean, and what are the differences?

    asked by Tasha
  107. Chem

    I'm supposed to pick three that are true, and my personal guesses are 2, 3 and 6. I'd love to know if these are right and if so, why are they right. If not, could someone possibly lead me in the right direction? 1. Leu-Glu-His-Val-Cys-Lys-Ser is a likely

    asked by Big Mark
  108. Biology

    In a population of jaguars, a gene with two alleles encodes the fur color. Allele B causes melanism (dark fur) and is dominant over allele b, which results in light colored fur. Suppose that there is a migration event, producing a population with 60% BB,

    asked by Joe
  109. physics

    A 0.10 kilogram ball dropped vertically from a height of 1.0 meter above the floor bounces back to a height of 0.80 meter. The mechanical energy lost by the ball as it bounces is aprox. a. 0.080 J b. 0.20 J c. 0.30 J d. 0.78 J

    asked by N
  110. Math: Please check my answers

    1. What is the degree of the monomial 3x2y3? 2 3 5 6 2. What is the simplified form of 8b3c2 + 4b3c2? 12bc 12b3c2 12b6c4 12b9c4 3. What is the simplified form of (4j2 + 6) + (2j2 – 3) ? (1 point) (0) 6j2 – 3 (1) 6j2 + 3 (0) 6j2 + 9 (0) 4j4 + 3 4. What

    asked by Deborah
  111. Chem hwk

    In the balanced double replacement reaction of calcium chloride CaCl2 and aluminum sulfate Al2(SO4)3, how many grams of calcium sulfate can be produced if you start the reaction with 18.97 grams of calcium chloride and the reaction goes to completion?

    asked by Thad
  112. physics

    A near-sighted person might correct his vision by wearing diverging lenses with focal length f = 60 cm. When wearing his glasses, he looks not at actual objects but at the virtual images of those objects formed by his glasses. Suppose he looks at a

    asked by k
  113. algebra

    formula of y=x to the power 2 divided by 4c

    asked by shani
  114. science

    What is the boiling point of a solution of 0.150g of glycerol in 20g of water? What is the freezing point?

    asked by Absa
  115. Spanish help please.

    I'm not very good at spanish. Will somebody please help? 4. Which expression is used to talk about what you have just done? A.) venir de B.) hacer la tarea C.) hacer un viaje D.) acabar de 5. Vengo de la clase. ¿Qué acabo de hacer? A.) Acabas de bailar.

    asked by Zane
  116. math

    If a hiker walks trail B (1 mile in length) at 6 mph and trail C (3 mils in length) at 2 mph, what is the hiker's overall average speed, in mph, for hiking on the two trails?

    asked by jake
  117. Physics

    A solid gold bathtub (mass=250 Kg)is pushed along a horizontal cement road (mew=0.59)by criminals. The criminals, in fear of capture, run away and leave the bathtub sliding with a velocity of 9 m/s. Assuming all kinetic energy is converted to heat from

    asked by Moe
  118. Physics

    A solid gold bathtub (mass=250 Kg)is pushed along a horizontal cement road (mew=0.59)by criminals. The criminals, in fear of capture, run away and leave the bathtub sliding with a velocity of 9 m/s. Assuming all kinetic energy is converted to heat from

    asked by Moe
  119. Physical science

    A box with a mass of 2,ookg rests on a horizontal surface.Calculate the maximum static friction if ms=0,4oo

    asked by Busisiwe
  120. American Gov't

    The president's role in foreign policy increased largely because: A. Congress proved so inept in foreign affairs that the American people demanded a change. B. America became more of a world power. c. of the need to coordinate national economic policy and

    asked by Suzy
  121. math

    It takes Kaeden 6 min to type two-thirds of a page. At this rate, how long will it take him to type a 5-page report?

    asked by Tammy
  122. math

    what is an example or a quintic function with exactly four real zeros?

    asked by Brenda
  123. math

    A car rental charges $25 a day plus.15 a mile for a compact car.Tess owes $61.40 for a two day rental. Which equation could be used to find the number of miles she drove.

    asked by adry
  124. World civilizations

    Although most students begin by assuming settled farming life was better than that lived by hunter-gatherers, closer acquaintance with full Paleolithic Hunter-Gatherer life shows us many aspects that could be considered easier than that of very early,

    asked by Ericka
  125. math

    p=3000 a=3180 plus 1yr simple interest rate=r tothe nearest tenth percent

    asked by Anonymous
  126. Religion

    Hi. How does faith, charity and hope show leadership and service. I know the definitions to these words but i don't get how they connect to leadership and service. Please help

    asked by Ted
  127. physics

    a person walks 13.0 degrees north of east for 3.80km. How far due north and how far due east would she have to walk to arrive at the same location?

    asked by jane
  128. Chemistry

    From the jewelry descriptions given, select the homogeneous mixture or solution. Answer?? 10 carat (K) electroplated gold jewelry 24 carat (K) gold jewelry (i know this is pure gold) 18 carat (K) gold jewelry Are these right? CaCl2>>calcium chloride

    asked by Lucky
  129. College Chemistry

    Upon decomposition, one sample of magnesium fluoride produced 1.66kg of magnesium and 2.56kg of fluorine. A second sample produced 1.25kg of magnesium.How much fluorine (in grams) did the second sample produce?

    asked by Kaycie
  130. Algebra

    When is the substitution method a better method than graphing for solving a system of linear equations?

    asked by Cassidy
  131. Consumer Math

    Can you please check my answers:) 1. John Gray bought a basic car for $8,250.00, with options that cost $324.00. There's a 6% sales tax in his state and a combined $50.00 license and registration fee. What was John's total cost? A. $9,138.44 B. $10,000.00

    asked by Liz
  132. physics

    A man in a maze makes 3 consecutive displacements. His first displacement is 5.40m westward, and the second is 18.0m northward. At the end of his displacement he is back to where he started. Use the graphical method to find the magnitude and direction of

    asked by george
  133. English; Help/Check.

    What is the main idea of 'The Raven' by Edgar Allan Poe? The raven haunts the man while being awfully depressed by his long lost love.

    asked by Unknown
  134. Religion

    What's a good life in today's society? Some people think a good life is having money, family and friends. I do not know how else to describe what a good life is in TODAY'S SOCIETY

    asked by Ted
  135. scocial studies

    how did imperialism, nationalism and militarism lead to WW1

    asked by brigid
  136. Chemistry

    Determine the normality of 91.2 g of HCl in 4.3 L of solution. (Round to the nearest hundredth.)

    asked by Kailee
  137. Physics

    A 1000-kg car moving east at 80 km/h collides head-on with a 1500-kg car moving west at km/h, and the two cars stick together. (a) Which way does the wreckage move and with what initial speed? (b) How much KE is lost in the collision?

    asked by Jan
  138. Math !...

    Hi, Can You Please Help Me? What is the amount of sales tax owed on a $39 jacket if the tax rate is 5%? $1.85 $1.90 $1.95 $195.00 (my answer) A flower arrangement was marked down 12.5%. If the flowers originally cost $20, what is the amount of the

    asked by Anonymous
  139. College Chemistry

    How many moles of aluminum do 2.66×10^24 aluminum atoms constitute?

    asked by Kaycie
  140. physics

    A girl delivering newspapers covers her route by traveling 10.00 blocks west, 4.00 blocks north, and then 5.00 blocks east. a.) what is her resultant displacement? b.) what is the total distance she travels?

    asked by jane
  141. math

    Add two operational signs to make the equation true. 2 4 6 1 3=88

    asked by Anonymous
  142. math

    1/2x^2=x/4+1 how can i solve that with quadratic formula?plz i need the solution fast.

    asked by Riana
  143. Math

    Are there more rational or irrational numbers? I am thinking irrational, because the product of a rational and irrational number is irrational. Is this enough of a reason to prove it?

    asked by Chuck
  144. ACCOUNTING

    Gardner Manufacturing Company produces a product that sells for $120. A selling commission of 10% of the selling price is paid on each unit sold. Variable manufacturing costs are $60 per unit. Fixed manufacturing costs are $20 per unit based on the current

    asked by DIANE
  145. Algebra 1

    sqrt5 -1/x = sqrt5/2 i cross multiplied and i got 3.5= 2.23x is that right?

    asked by Hally
  146. Math

    susan spends 2 1/4 hours taking inventory and 1 1/2 hours restocking how many hours does susan work

    asked by Dawn
  147. mathematics sequence and series

    You hv been given n=2 an Tn=5,n=3 an Tn=7,n=4 an Tn=9,n=7 an Tn=A,n=10 an Tn=21,n=B an Tn=153 determine A and B help please

    asked by mayinga Neville
  148. math

    Mr. Anders wants to put a fence around his backyard. His backyard is rectangular. The lengths of the sides are 75 yards , 45 yards, 75 yards, and 45 yards. How much fencing will Mr. Anders need ?

    asked by Anonymous
  149. math

    2x-y=9 x+2y=7

    asked by tony clinton
  150. math

    input 35 output 21 answer

    asked by kushal
  151. physics

    An airplane flies 200km due west from city A to city B and then 305km in the direction of 33.5 degrees north of west from city B to city C. a.) in straight-line distance, how far is city C from city A? b.) relative to city A,in what direction is city C?

    asked by jane
  152. APA Citation

    In our annotations what do we write? I don't understand how to do it. Thanks!

    asked by Amy
  153. socialstudies

    during which time peroid is the bourbon trimvirate accociated?

    asked by baker county schools
  154. math

    5 pounds of potatoes for $2.19 equals what per pound?

    asked by kile
  155. math

    reduce the following to their lowest term 18/27, 85/119, 58/87, 75/120, 39/52

    asked by dDavid
  156. algebra

    Jet #1 leaves an airport at 600 km/h. Jet #2 leaves 3/4 hour after jet #1 in same direction. How long until jet #2 overtakes jet #1

    asked by Hannah
  157. Chemistry

    # of moles of oxygen in 2 L @ 24 deg C & 750 torr?

    asked by Annie
  158. Pre-Calculus

    At time t hours after taking the cough suppressant hydrocodone bitartrate, the amount A, in mg, remaining in the body is given by A=13(0.82)^t. a) What was the initial amount taken? b) What percent of the drug leaves the body each hour? c) How much of the

    asked by Becky
  159. Chemistry

    Determine the partial pressure of oxygen collected by water displacement if the water temperature is 20.0 ◦ C and the total pressure of the gases in the collection bottle is 760 torr. PH2O at 20.0 ◦ C is equal to 17.5 torr.

    asked by Kaitlin
  160. physics

    A force Farrowbold1 of magnitude 5.00 units acts on an object at the origin in a direction θ = 34.0° above the positive x-axis. (See the figure below.) A second force Farrowbold2 of magnitude 5.00 units acts on the object in the direction of the positive

    asked by george
  161. physics

    The speed of a transverse wave on a string is 470 m/s, and the wavelength is 0.1 m. The amplitude of the wave is 1.6 mm. How much time is required for a particle of the string to move through a total distance of 1.0 km?

    asked by carter montgomery
  162. physics

    The mass of a string is 8.40 10-3 kg, and it is stretched so the tension in it is 225 N. A transverse wave traveling on this string has a frequency of 260 Hz and a wavelength of 0.60 m. What is the length of the string? m

    asked by carter montgomery
  163. math

    Jamie and Bryce each have a bag of candy containing 40 gumballs that are either red or blue. The ratio of red to blue gumballs in Jamie's bag of candy is 1:3, and the ratio of red to blue gumballs in Bryce's bag of candy is 1:4. How many more red gumballs

    asked by Brianna
  164. Physics

    A 1200kg car accelreates from 0mph-60mph in 8.5 seconds. Calculate the force needed to accelerate the vehicle.

    asked by Alexis
  165. geometry

    sodium has a body-centered cubic structure with a unit cell that is 430 picometers wide. estimate the radius of a sodium atom. please help me, I don't know how to get the solution. THank you

    asked by lin
  166. Pre-Calculus

    The exponential function y(x)=Ce^ax satisfies the conditions y(0)=6 and y(1)=7. (a) Find the constants C and a. Enter the exact value of a. (b) Find y(2). Enter the exact answer. Simplify the answer so it does not contain any logarithms.

    asked by Becky
  167. math

    point of symmetry? 2(x-7)(X+3) and vertex?

    asked by Riana
  168. math

    4(2x -5)

    asked by Theresa
  169. chemistry

    When 4.167 g of a unknown compound is added to 34.1 g of a particular solvent, the freezing point of that solvent decreases by 0.8 °C. Determine the molar mass of the unknown compound. (The freezing point constant of the solvent is 2.82 °C/m).

    asked by ama
  170. math help!

    how to find the x intercept of d(x)=9x^2-4x+7

    asked by Riana
  171. math

    How would i do 5-4x equals -11

    asked by Anonymous
  172. math

    Unit rate 6 eggs in 7 days?

    asked by Rose
  173. Math

    Sean bought a music CD which had 5 tracks on it. The table lists the music tracks and their times Track 1 3min 16sec Track 2 5min 27sec Track 3 4min 18sec Track 4 5min 33sec Track 5 6min 2sec BAsed on the table how long will it take Sean to listen to all

    asked by Jerald
  174. Physics

    At a certain time a particle had a speed of 17 m/s in the positive x direction, and 2.0 s later its speed was 32 m/s in the opposite direction. What is the magnitude of the average acceleration of the particle during this 2.0 s interval?

    asked by Rachel
  175. physics

    an electron (m= 9.11 x 10^-31 kg) and a proton (m+ 1.6 x 10^-27 kg) are separated by 1.0 x 10^-10 m. what is the gravitation force between them? help please!

    asked by Isis
  176. 3rd grade math

    erins summer vacation lasted 100 days. she kept track of the number of rainy days. it rained on 30 days. write a fraction and an equivalent fraction to show what part of all the days it rained.

    asked by mythreyee
  177. Pre-Calculus

    Find a solution to the equation if possible. Give the answer in exact form and in decimal form rounded to three decimal places. 1=21tan(2x+2)-6

    asked by Becky
  178. Physics

    A ball on the end of a string is whirled around in a horizontal circle of radius 0.486 m. The plane of the circle is 1.83 m above the ground. The string breaks and the ball lands 2.39 m away from the point on the ground directly beneath the ball’s

    asked by Allisa
  179. Physics

    An athlete whirls a 7.36 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.07 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain

    asked by O'Brien
  180. Math

    Students in Mr. Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? A. The diameter is about 1/3 of the circumference B.The

    asked by Jerald
  181. math help!

    how to find the points thought which the function goes like if the vertex is 2,5 and it goes through (6,-1) how would i find the other point?

    asked by Riana
  182. Physics

    At a certain time a particle had a speed of 17 m/s in the positive x direction, and 2.0 s later its speed was 32 m/s in the opposite direction. What is the magnitude of the average acceleration of the particle during this 2.0 s interval?

    asked by Rachel
  183. social studies

    I need help on these questions: John ________, (John) Adams And Paul Revere were all leaders of the ________ ____ _________. To help fight the colonists, King George III hired ___________ from ____________.

    asked by Celest
  184. 3rd grade math

    kira's winter break lasted 10 days. it snowed on 6 of those days. write a fraction and an equivalent fraction to show what part of all the days it snowed.

    asked by mythreyee
  185. math

    write the hidden question or questions in the problem Billy Bob wins $500 in a school raffle. He decides to keep $120 for himself, give $60 to charity, and divide the rest equally among his 5 brothers & sisters. How much will each brother zor sister

    asked by Joe
  186. math

    which expression is equivalent to 5a+8-2(a+4)?

    asked by zawadi
  187. College Algebra

    Hello I need help with this problem. I need to identify if the equation is identity, contradiction, or conditional equation. -(5x-3)+2x=11-4(x+2)

    asked by Kristen
  188. Physics

    An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.7 s. A passenger in the elevator is holding a 6.6 kg bundle at the end of a vertical cord. What is the tension in the cord as the elevator accelerates? The

    asked by Kaylin
  189. math

    Find a subset of R^2 which is not of the form AxB where A and B are subsets of R.

    asked by Jen
  190. math

    What is the opposite of subscription

    asked by Anonymous
  191. Physics

    A block of mass 12 kg starts from rest and slides a distance of 8 m down an inclined plane making an angle of 40◦ with the horizontal. The coefficient of sliding friction between block and plane is 0.4. The acceleration of gravity is 9.8 m/s^2 What is

    asked by Murry
  192. Calculus

    lim e^(1+h)-e/h h->0

    asked by Jack
  193. dress making

    im pretty sure im right on most the question, just wanna make sure before i submit!! help Mrs. Shotto was once one of your regular customers, but she hasn't asked to have any garments made in approximately one year. You note she has lost weight. She would

    asked by caitlin
  194. Math

    What is the relationship between addition and subtraction?

    asked by Theresa
  195. Statistics

    You have received a year-end bonus of $5000. You decide to invest the money in the stock market and have narrowed your investment options down to two mutual funds. the following data represent the historical quarterly rates of return of each mutual fund

    asked by Maree
  196. Math

    Jacob bought a sandwich for $4.75, a small salad for $1.25. Jacob wrote the expression $4.75 + ($2.43 + $1.25) to calculate how much money he spent. Use the Commutative Property and the Associative Property to find how much Jacob spent.

    asked by Anonymous
  197. Pre-Calculus

    For a boat to float in a tidal bay, the water must be at least 2.5 meters deep. The depth of the water around the boat, d(t), in meters, where t is measured in hours since midnight, is d(t)=5+4.6sin(0.5t) Use three decimal places in all intermediate

    asked by Becky
  198. Physics

    You weigh 526 N on earth. Planet X has twice the mass of Earth and the radius of Earth . What is your weight in newtons on planet X?

    asked by Brock Tab
  199. Math

    Chloe and Nick are meeting at the library. The library is 4.61 kilometers from Chloe's house and 3.256 kilometers from Nick's house. How much farther, in kilometers, will Chloe walk than Nick?

    asked by Anonymous
  200. Math

    Jacob bought a sandwich for $4.75, a small salad for $2.43, and juice for $1.25. Jacob wrote the expression $4.75 + ($2.43 + $ 1.25) to calculate how much money he spent. Use the Commutative Property and the Associative Property to find how much Jacob

    asked by Anonymous
  201. math

    Fifty students were surveyed about their favorite food. A student is selected at random. Based on the survey results, what is the probability that this student will choose Taco as their favorite food?

    asked by Dionne
  202. pre-calc

    Suppose the function p= -1/8 x + 100 (0 grtr&= x ~12) relates the selling price p of an item to the quantity x that is sold. Assume that p is in dollars. What is the maximum revenue possible in this situation?

    asked by ssassie
  203. math problem. help

    triangle base is (4-x)cm and its height is (2x+3)cm.what will be the maximium area?

    asked by Riana
  204. English

    What point is Tan making with the example of her mother and the hospital in Mother Tongue by Amy Tan 1990?

    asked by Nick
  205. Math

    six pencils cost $1.32.At this rate,how much will 5 pencils cost?

    asked by Nicole A
  206. math (trig.)

    A ferris wheel is 35 meters in diameter and boarded at ground level. The wheel makes one full rotation every 8 minutes, and at time (t=0) you are at the 3 o'clock position and descending. Let f(t) denote your height (in meters) above ground at t minutes.

    asked by fawn
  207. math

    What is 1/8 divided by 5?

    asked by Anonymous
  208. intermediate math

    the length of a rectangular plot of land is 4 times the width. of the perimeter is 600 feet, find the dimensions of the plot

    asked by mary
  209. ms sue

    triangle base is (4-x)cm and its height is (2x+3)cm.what will be the maximium area?

    asked by Riana
  210. problem solving

    three digit odd number divisible by 9 digits in consecutive order and digit in hundreds place is greater than the digit in the ones place?

    asked by joan
  211. Math

    Which value is not equal to the absolute value of -50. A) |50| B) |-50| C) 50 D)-50

    asked by Jamal
  212. math

    ms.Perez has 24 pieces of fruit 1/2 are oranges,1/4 are mangos,2/8 are pineapple. How many oranges are there. How many mangos are there? how many pineapples are there?

    asked by keivin
  213. math

    there are nine flowers 1/3 are daisies 1/3 are roses the rest are tulips

    asked by rohan
  214. math

    What do you get when you double 1/8?

    asked by Kendall
  215. science

    Describe the body’s stress response in terms of the actions of the adrenal cortex and medulla. What are the different hormones involved, where are they produced, what type of gland produces them, what type of chemical are they, and how do they contribute

    asked by paul
  216. math

    a person invested 1,200.00 at 7% interest for 6 years. how much interest did he receive?

    asked by chelsea
  217. alphabetize

    How do you alphabetize(using the actual number) 7 and 150?

    asked by Brenda
  218. Math

    It is estimated that residents in 60% of households in town own a digital camera. If 10 homes are randomly selected, what is the probability that no more than 5 own digital cameras?

    asked by Bersy
  219. English

    What are the adverb(s) in the following sentence The teacher seemed unusually cheerful. Is it unusually and cheerful?

    asked by Kelly
  220. math

    how do i mutiply and divide yrd, inches, and feet

    asked by Reggie
  221. math

    How much is 2/8

    asked by keivin
  222. math

    How much is 2/8 out of 24

    asked by keivin
  223. Math

    Sally bought 3 tickets to the observation deck at the top of a skyscraper. She paid with a five-dollar bill and got 50 cents change. What was the cost of each ticket?

    asked by Karla
  224. Help please

    Number the items to show the most effective and the least effective to use to scratch the mineral to test its hardness. Use number 1 for the most effective and the 4 for the least efective. Chalk(1) Fingernail(2) Steel screw(4) Paper clip(3) Am I

    asked by Tony
  225. Science 8R - HELP!

    any drawing?? a simple rube goldberg diagram that shows six simple machines i need it for my project

    asked by Laruen
  226. human resources

    Discuss the pay and compensation you receive at your most recent place of employment and what aspects of compensation are most important to you? How important is direct pay and bonuses?

    asked by kim
  227. perimeter and area fractions

    find the pereimeter and area for 9 /2/3 a fraction

    asked by jada
  228. math

    mark recently completed a math course in which he took three tests. his scores were 80,75,85 each time out of 100 points. What score represents marks total achievement in the course?

    asked by jane
  229. ap chemistry

    At a certain temperature, the equilibrium constant Kc is 0.154 for the reaction 2 SO2(g) + O2(g) *) 2 SO3(g) What concentration of SO3 would be in equilibrium with 0.250moles of SO2 and 0.853 moles of O2 in a 1.00 liter container at this temperature? Note:

    asked by cheri
  230. Math

    I can't figure it out but heres the story problem. "Speedy printing charges $30 for 200 deluxe business cards and $45 for 500 deluxe business cards. Calculate the cost for printing 700 deluxe business cards.

    asked by Darian
  231. music

    What is and orchestra and how do we know when the music is disjunct or conjunct

    asked by sjlual
  232. Human Resources

    Discuss the pros and cons of pay for performance systems and if you agree or disagree with the system and why. Give examples of organizations or professions that employ this type of pay system.

    asked by kim
  233. ap chemistry

    At 350 K, Kc = 0.142 for the reaction 2BrCl(g) *) Br2(g) + Cl2(g) An equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.069 mol/L. What is the equilib- rium concentration of BrCl? Answer in units of M

    asked by cheri
  234. Human Resources

    Do the predictors of union participation suggest that union leaders will likely be involved in an adversarial relationship with management? Please use reference material.

    asked by kim
  235. us history

    who developed the first fiscal plan?? was it hamilton and who was the author of the great compromise in constitution? was it madison

    asked by bob
  236. HUman Resources

    1. Unions did you find that you already had a basic understanding of Unions or was the information somewhat foreign to you? 2. What do you think you will be most interested to learn more about, regarding Unions, and why? 3. Answer question 5 on page 58

    asked by kim
  237. chemistry

    Which of the following compounds is expected to have the strongest interaction between its molecules? CO2, NO2, SO2, H2S

    asked by yr
  238. Physics

    Mr. Anderson shoots an arrow straight up into the air. The arrow leaves her bow at 1.2[m] above ground, and reaches a height of 95 feet above ground. It then falls down and penetrates 14 inches into the ground. Find: a) The velocity of the arrow just

    asked by Ashley
  239. Math

    There are 12 girls on a gymnastics team. Less than 1/4 of the girls are in second grade. How many girls on the gymnastics team could be in second grade?

    asked by Ms. Ramos
  240. ELA

    If an article has many examples of things that are given from people, are the examples from people still considered a source???

    asked by Dingbat
  241. math 4th

    How much greater than 25kilogram is 31 kilogram?

    asked by akeem
  242. 5th grade math

    Make up a set of at least 12 numbers that has the following landmarks: Minimum: 50 Maximum: 57 Median: 54 Mode: 56

    asked by Amy
  243. math

    galileo showed that objects of different weights fall at the same velocity by dropping 2 objects of different weight form the top of the leaning tower of pisa. a model for the heigh h in feet of an object dropped from an initial h0 feet is h=16t^2+h0,

    asked by Leslie
  244. Physics!

    Ms. Anderson shoots an arrow straight up into the air. The arrow leaves her bow at 1.2[m] above ground, and reaches a height of 95 feet above ground. It then falls down and penetrates 14 inches into the ground. Find: a) The velocity of the arrow just

    asked by Ashley
  245. Math

    Leroy borrowed $8250 to be repaid after 3 years at an annual simple interest rate of 7.25%. How much interest will be due after 3 years? How much will Leroy have to repay? How do I set this up?

    asked by Juliana
  246. PHYSICS

    Ms. Anderson shoots an arrow straight up into the air. The arrow leaves her bow at 1.2[m] above ground, and reaches a height of 95 feet above ground. It then falls down and penetrates 14 inches into the ground. Find: a) The velocity of the arrow just

    asked by Ashley
  247. math 4th

    How much greater than 25kilogram is 31 kilogram?

    asked by akeem
  248. langauge arts - mr. sue help!!

    25. Select one story from the unit and identify the dynamic and static characters. For each character, identify why you labeled the character as either dynamic or static. (10 points)

    asked by diamond
  249. physics

    A 1100 wrecking ball hangs from a 10 -long cable. The ball is pulled back until the cable makes an angle of 28.0 with the vertical.By how much has the gravitational potential energy of the ball changed?

    asked by Mak
  250. Physics

    A tomato is thrown upward from a bridge 23 m above the ground at 40 m/sec. Take the acceleration of gravity be equal to 9.8 m/s^2 (a) Give formulas for the acceleration, velocity, and height of the tomato at time t. (b) How high does the tomato go, and

    asked by Rachel
  251. calculus 2

    A tomato is thrown upward from a bridge 23 m above the ground at 40 m/sec. Take the acceleration of gravity be equal to 9.8 m/s^2 (a) Give formulas for the acceleration, velocity, and height of the tomato at time t. (b) How high does the tomato go, and

    asked by Rachel
  252. Math

    Rational exponents 8^2/3?

    asked by George
  253. science

    19. The term chromatin refers to a. the color of certain cells b. chromosomal DNA c. the fluid within the nucleus d. ribosomal RNA

    asked by erica
  254. Math

    negative exponents 16^-3/4?

    asked by George
  255. chem

    draw the approximate curve for a 25ml 0.10 M weak acid HA (K=1x10^-6) that is titrated with 0.10 M NaOH

    asked by rose
  256. high shoool algebra

    Joy is 20 years older than Bob. Three years ago, Joy was 5 times as old as Bob. How old are they now?

    asked by roy
  257. physics

    Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along the x-axis at 0 cm, 1.7 cm, and 6.0 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is 8.99 × 10 9 N · m2 /C 2

    asked by Anonymous
  258. physics

    Three point charges, +6.0 µC, +1.7 µC, and −2.3 µC, lie along the x-axis at 0 cm, 1.7 cm, and 6.0 cm, respectively. What is the force exerted on q1 by the other two charges? (To the right is positive.) The Coulomb constant is 8.99 × 10 9 N · m2 /C 2

    asked by Anonymous
  259. chem

    if a 240mg of an acid H2A required 50.0ml of 0.10M NaOH for complete neutralization, what is yhe equivalent weight of the acid? what is its molecular weight?

    asked by rose
  260. math

    f(x)=2 |x-2| ; f(-2), f(x^2+2)

    asked by Julie
  261. math

    f(x)=2 |x-2| ; f(-2), f(x^2+2)

    asked by Julie
  262. physics

    Find the coefficient of static and kinetic friction of a block on a table surface. The mass of the weight is 200g and with the friction block overall the mass is 0.3 kg. With a spring scale we found Fs to be 1N and Fk to be 0.8N. Draw free body diagram.

    asked by Mary
  263. 6th grade math

    I need help explaining ratios and proportions to my 6th grader

    asked by An
  264. Math

    My son is struggling with ratios and Ploygons. The word problem is: Lydia wants to use a photocopier to increase the size of a small chart. The chart is 4 in. by 5 in. If she uses a scale factor of 5:11 will the chart fit on a 8 1/2 x 11 sheet of paper?

    asked by Zina
  265. Analytical Chemistry

    The question: The pH of a solution is defined as pH = -log[H3O+]. If the pH of a solution is 3.72(+/- 0.03), what is the [H3O+] and its absolute standard deviation? Answer: How would I carry this out? I know to find the hydronium concentration wouldn't i

    asked by James
  266. Math

    Test Axioms, What are the diagonals of a rectangle?

    asked by George
  267. Government Budgeting

    Evaluate how public policy decisions affect the receipt of revenues

    asked by Tee
  268. Algebra

    How do I work this problem? "Susan is 9 years older than Karen. In 10 years Karen will be 2/3 Susan's age. How old will the two girls be in 10 years?"

    asked by Katherine
  269. maths

    A rectangular paddock is 164 metres long and 95 metres wide. How many metres of fencing are required to enclose the area?

    asked by Hailey
  270. physics

    An athlete executing a long jump leaves the ground at a 32.3 angle and travels 7.84 m. What was the takeoff speed? If this speed were increased by just 5.0%, how much longer would the jump be?

    asked by lee
  271. math ALGEBRA 1 PLEASE HELP!

    You have $2.75 in dimes and quarters, and you have a total of 17 dimes and quarters. How many of each type of coin do you have?

    asked by alex
  272. math 121

    jennifer is asked to complete 5 of the 7 essay questions on her literature exam how many choices does jennifer have?

    asked by michelle
  273. Math

    a+h a _____ -- ______ a+h+1 a+1 _________________ h

    asked by Julie
  274. energy

    A boy weighing 350Newton runs up a flight of stairs consisting of 20 stairs each, 16 centimeter high in seconds, what ??$ it's power?

    asked by yemi
  275. math permutations

    how many distinguishable permutations are there of the letters in the word effective

    asked by mary
  276. math

    Josephine deposited 8,000 in an account that pays 6% compounded annually. What is her investment at the end of 3 years

    asked by Anonymous
  277. Physics

    A 250-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.8 ° below the horizontal. The coefficient of kinetic friction is 0.224. What should be the magnitude of P, so that the net work done by it and the kinetic

    asked by Sadi
  278. math

    what number is the same as 7 tens and 20 ones

    asked by Anonymous
  279. maths

    Cn-4= 15 find n?

    asked by yemi
  280. Physics PLEASE HELP!

    A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and

    asked by Adriana
  281. Physics PLEASE HELP ASAP :)

    A small spherical insulator of mass 8.96 10-2 kg and charge +0.600 μC is hung by a thread of negligible mass. A charge of −0.900 μC is held 0.150 m away from the sphere and directly to the right of it, so the thread makes an angle θ with the vertical

    asked by Chelsea
  282. Math

    f(x)=x+4; f(x^2), (f(x))^2

    asked by James
  283. physics

    a squirt gun is tied to a string and released when it is 1 meter above the ground. the mass of the gun is .1kg. what ist its initial PE? 1Joule what is its PE when it has fallen to .75meters? .75 J What is its KE at this point? .25 J What is its velocity?

    asked by Anonymous
  284. Chemistry

    During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solutions' final volume is 100.0 mL, the density is 1.00 g/mL, and the specific

    asked by Thuy
  285. Calculus

    lim 1/(1+h)^2-1/h h->0 I have 1 as my final answer and was wondering if i was correct

    asked by Jack
  286. Physics

    Two particles, with identical positive charges and a separation of 2.65 10-2 m, are released from rest. Immediately after the release, particle 1 has an acceleration 1 whose magnitude is 4.25 103 m/s2, while particle 2 has an acceleration 2 whose magnitude

    asked by Elizabeth
  287. math

    The number of Roberto's baseball cards is 3/4 the number of David's cards. If Roberto gives 1/2 of his cards to David, what will be the ratio of Roberto's cards to David's cards?

    asked by justin
  288. Physics

    Two small balls each of mass 15g are fastened to the ends of silk threads 1m long each and hung from a common point. They attain equilibrium at a distance of 20cm from each other. If one ball has a charge of -0.6microC, what is the charge of the other

    asked by Gabriel Dungca
  289. Physics super difficult for me

    Two small balls each of mass 15g are fastened to the ends of silk threads 1m long each and hung from a common point. They attain equilibrium at a distance of 20cm from each other. If one ball has a charge of -0.6microC, what is the charge of the other

    asked by Gabriel